2022
DOI: 10.1016/j.bios.2022.114008
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Surface-enhanced Raman scattering-based immunoassay for severe acute respiratory syndrome coronavirus 2

Abstract: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has affected humans worldwide for over a year now. Although various tests have been developed for the detection of SARS-CoV-2, advanced sensing methods are required for the diagnosis, screening, and surveillance of coronavirus disease 2019 (COVID-19). Here, we report a surface-enhanced Raman scattering (SERS)-based immunoassay involving an antibody pair, SERS-active hollow Au nanoparticles (NPs), and magnetic beads for the detection of SARS-CoV-2. Th… Show more

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Cited by 42 publications
(24 citation statements)
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“…In this study, we developed a high-sensitivity surface-enhanced Raman scattering (SERS)-LFA system by combining an SERS-based LFA strip with a portable Raman spectrophotometer to solve the sensitivity problem of the commercial LFA strip. Recently, several studies on SERS detection using SARS-CoV-2 have been published. In addition, several custom-built SERS readers that can rapidly diagnose clinical samples in the field have also been reported. Nevertheless, a diagnostic system that can detect SARS-CoV-2 antigen with high sensitivity in the field has not yet been reported. Herein, we manufactured a portable SERS-LFA reader that is capable of analyzing SARS-CoV-2 on-site and determined the calibration curve and LoD along with the SARS-CoV-2 concentration.…”
mentioning
confidence: 99%
“…In this study, we developed a high-sensitivity surface-enhanced Raman scattering (SERS)-LFA system by combining an SERS-based LFA strip with a portable Raman spectrophotometer to solve the sensitivity problem of the commercial LFA strip. Recently, several studies on SERS detection using SARS-CoV-2 have been published. In addition, several custom-built SERS readers that can rapidly diagnose clinical samples in the field have also been reported. Nevertheless, a diagnostic system that can detect SARS-CoV-2 antigen with high sensitivity in the field has not yet been reported. Herein, we manufactured a portable SERS-LFA reader that is capable of analyzing SARS-CoV-2 on-site and determined the calibration curve and LoD along with the SARS-CoV-2 concentration.…”
mentioning
confidence: 99%
“…The strains were cultured as described previously. 52 , 53 All experiments involving the use of SARS-CoV-2 were performed at the Korea Centers for Disease Control and Prevention (KCDC)-approved BL-3 facility of KRIBB in accordance with institutional biosafety requirements. The genomic RNA of the viruses (SARS-CoV-2, influenza A virus subtype H1N1, H3N2, H5N2, H1N2, and H3H8, and RSV A) was provided by the NCCP.…”
Section: Methodsmentioning
confidence: 99%
“…SARS-CoV-2 strains (BetaCoV/Korea/KCDC03/2020, hCoV-19/Korea/KDCA51463/2021; GR, B.1.1.7, hCoV-19/Korea/KDCA55905/2021; GH, B.1.351, hCoV-19/Korea/KDCA72731/2021; GR, P.2 lineage, hCoV-19/Korea/KDCA49671/2021; GH, B.1.427, hCoV-19/Korea/KDCA59777/2021; GH, B.1.429, hCoV-19/Korea/KDCA79765/2021; G, B.1.525, hCoV-19/Korea/KDCA49671/2021; GH, B.1.526, hCoV-19/Korea/KDCA95637/2021; GR, P.1, hCoV-19/Korea/KDCA105288/2021; G, B.1.617.1, hCoV-19/Korea/KDCA119861/2021; G, B.1.617.2, hCoV-19/Korea/KDCA447321/2021; GRA, B.1.1529) were provided by the National Culture Collection for Pathogens (NCCP), which is operated by the Korea National Institute of Health. The strains were cultured as described previously. , All experiments involving the use of SARS-CoV-2 were performed at the Korea Centers for Disease Control and Prevention (KCDC)-approved BL-3 facility of KRIBB in accordance with institutional biosafety requirements. The genomic RNA of the viruses (SARS-CoV-2, influenza A virus subtype H1N1, H3N2, H5N2, H1N2, and H3H8, and RSV A) was provided by the NCCP.…”
Section: Methodsmentioning
confidence: 99%
“…This SERS immunoassay detected SARS-CoV-2 S protein with a LOD of 0.046 ng mL −1 (0.60 pM). Cha et al [ 94 ] proposed a magnetically assisted immunosensor consisting of the reporter antibody, malachite green isothiocyanate conjugated hollow AuNPs, and antibody-conjugated magnetic beads for the SARS-CoV-2 determination. In this study, malachite green was utilized as a popular Raman dye that generates a distinct spectrum.…”
Section: Sers-based Sensing Methodsmentioning
confidence: 99%